AeraMax DX5 Air PurifierFour stage purification system captures 99. 97% of airborne particles as small as 0. 3 microns, including pollen and other allergens, dust mites, mould spores, pet dander and cigarette smoke AeraSafe Antimicrobial Treatment built in protection from the growth of odour causing bacteria, mildew and fungi on True HEPA filter AeraSmart Sensor monitors the air quality and automatically adjusts the fan speed to keep your air purified. Blue, amber and red